Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX6MMM callsign genealogy
Currently held by Howell, Michael J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KX6MMM's current licensee, walking backwards.
- Howell, Michael JCAgranted 2017-07-11cancelled 2017-11-14
Successor callsigns
Callsigns held now by people who previously held KX6MMM.
No current licensee on record previously held this callsign.